Broad molecular weight distribution polymer product from loop reactors with intentional thermal gradients
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United States of America Patent
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Dec 20, 2022
Grant Date -
Oct 8, 2020
app pub date -
Mar 23, 2020
filing date -
Apr 5, 2019
priority date (Note) -
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Abstract
A method for producing a polyolefin with a wide molecular weight distribution can comprise: polymerizing one or more monomers in the presence of a catalyst system in a loop reactor to produce a polyolefin product having a polydispersity index of 2.5 to 8, wherein the loop reactor comprises two or more reactors in series, and wherein the loop reactor has a loop thermal gradient of 50° C. to 150° C. and/or a standard deviation of inter-component thermal gradients along the loop reactor of 10° C. to 50° C.
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